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31

APPENDIX: Pinouts

Appendix: Pinouts

Figures A-1 to A-11 provide connection diagrams for the range of available
interfaces and options. Table A-1 provides pin assignments for cable
connections.

Figure A-1. Connection to DTE, V.35 Interface (EHN033).

G.703

Codirectional

Converter

(DCE)

V.35

(DTE)

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Summary of Contents for MicroConverter G.703

Page 1: ...support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox c...

Page 2: ...erated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measure...

Page 3: ...El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito e...

Page 4: ...r una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado deb...

Page 5: ...4 G 703 CODIRECTIONAL CONVERTER TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners...

Page 6: ...7 3 3 1 Overview 17 3 3 2 The Jumper Setting Procedure 20 3 4 Installation in 19 Inch Racks 20 3 4 1 Overview 20 3 4 2 Installing a Single Unit in a 19 Inch Rack 21 3 4 3 Installing Two Units in a 19...

Page 7: ...to 384 kHz Pulse Amplitude 1 0 V nominal Zero Amplitude 0 V 0 1 V max Clock Frequency 64 kHz Frequency Tracking 500 ppm Connector 5 screw terminal block Jitter Performance To G 823 requirements DATA C...

Page 8: ...R output ON V when power is available Clock Source From G 703 Receive pair LBT from DCE EXT or from internal source INT user selectable Data Polarity Normal MARK 0 or inverted MARK 1 user selectable O...

Page 9: ...the Converter has a range of up to 800 meters 1 2 mile from the PCM equipment The unit s receive timing source is the recovered clock from the CCITT G 703 receive pair You can set a jumper to select a...

Page 10: ...Converter s front panel LEDs to continuously monitor the main channel s activity and synchronization 2 2 Timing Theory 2 2 1 CCITT G 703 SIGNALING The CCITT G 703 codirectional signal is made up of tw...

Page 11: ...timing three timing options for the data communication side associated with the loopback timing LBT on the G 703 side are available Receive Clock and Transmit Clock are both outputs from the Converte...

Page 12: ...ntroduction Figure 2 2 G 703 Codirectional Converter signaling Figure 2 3 LBT DTE Connection Figure 2 4 LBT DCE21 Connection G 703 Codirectional Converter G 703 Codirectional Converter G 703 Codirecti...

Page 13: ...ce within the G 703 Codirectional Converter between the receive and the transmit directions of transmission Figure 2 6 shows this timing mode Internal Clock Timing Mode The Converter s internal oscill...

Page 14: ...13 CHAPTER 2 Introduction Figure 2 6 Transmit Clock Timing Mode Figure 2 7 Internal Clock Timing Mode G 703 Codirectional Converter G 703 Codirectional Converter...

Page 15: ...on the 8 kHz octet information by introducing violations into the signal and the 64 kbps data pattern A binary one 64 kbps bit period is coded as a block of the four bits 1100 A binary zero 64 kbps bi...

Page 16: ...15 CHAPTER 2 Introduction Figure 2 8 Tail Circuit Application Figure 2 9 G 703 Code Conversion G 703 Codirectional Converter...

Page 17: ...for RTS DCD end to end signalling or for a secondary async channel North American T1 1 544 Mbps applications require that this bit position be set to a binary 1 You can do this easily by leaving the...

Page 18: ...u find to your carrier and supplier 3 2 Site Requirements The G 703 Codirectional Converter should be installed within 5 feet 1 5 m of a grounded AC outlet capable of furnishing 230 or 115 volts It mu...

Page 19: ...18 G 703 CODIRECTIONAL CONVERTER Figure 3 1 G 703 Codirectional Converter Board Layout...

Page 20: ...ITT G 703 Rx pair EXT The Tx pair and transmit timing are from the RS 422 V 35 external source INT The Tx pair and transmit timing are from the internal source LBT DTE DTE Connection to DTE with trans...

Page 21: ...the AC mains outlet Remove the top cover of the G 703 Codirectional Converter Identify the jumpers s refer to Figure 3 1 Move the jumper s to your desired position s Replace the top cover of the G 70...

Page 22: ...3 2 To prepare the Converter for rack installation attach the two brackets to the sides of the unit Do this by inserting screws and flat washers into the two holes at the front of each side nuts are...

Page 23: ...or the other U bracket 5 Hold the second unit close to the left wall of the opened unit and using a screwdriver drive the four long screws items 3B until their ends emerge from the first unit s left w...

Page 24: ...23 CHAPTER 3 Installation Figure 3 3 Installing two units in a 19 inch rack...

Page 25: ...d a 3 prong AC Mains terminal which also contains the integral fuse compartment The DB25 connector carries input output data clock signals and control signals between the Converter and the DCE for mor...

Page 26: ...fuse and one replacement fuse are located in the top part of the mains connector on the Converter s rear panel The nominal current value of the fuse is 0 125 mA for 230 VAC operation Whenever it is l...

Page 27: ...oth the primary and secondary channels to the Converter through the Converter s DTE connector Refer to Figures A 3 A 7 and A 11 in the Appendix NOTE You can use an async secondary channel only when yo...

Page 28: ...and their functions 4 1 Front Panel Controls and LEDs Five LEDs are visible through the front panel see Figure 4 1 Each LED s function is described in Table 4 1 Two pushbuttons are available for acti...

Page 29: ...Transmit Data input and goes off when a steady mark is present RD Yellow Flickers when data is present at receive Receive Data output and goes off when a steady mark is present LOS Red Lights when the...

Page 30: ...TIVATING LOOPS When performing tests observe the following guidelines and restrictions Activation of a test loop interrupts normal traffic flow Only one test may be activated at a time 4 2 3 TURN OFF...

Page 31: ...30 G 703 CODIRECTIONAL CONVERTER Figure 4 2 Local analog loopback Figure 4 3 Local digital loopback G 703 Codirectional Converter G 703 Codirectional Converter...

Page 32: ...s A 1 to A 11 provide connection diagrams for the range of available interfaces and options Table A 1 provides pin assignments for cable connections Figure A 1 Connection to DTE V 35 Interface EHN033...

Page 33: ...32 G 703 CODIRECTIONAL CONVERTER Figure A 2 Connection to DCE V 35 Interface for tail circuit application EHN034 V 35 DCE G 703 Codirectional Converter DCE...

Page 34: ...33 APPENDIX Pinouts Figure A 3 V 35 With Secondary Channel Cable EY 2364 C G 703 Codirectional Converter V 35 25 Pin Connector DTE V 35 Connector...

Page 35: ...34 G 703 CODIRECTIONAL CONVERTER Figure A 4 Connection to DTE X 21 Interface EHN035 X 21 DTE G 703 Codirectional Converter DCE...

Page 36: ...35 APPENDIX Pinouts Figure A 5 Connection to DCE X 21 Interface EHN036 X 21 DCE G 703 Codirectional Converter DTE...

Page 37: ...36 G 703 CODIRECTIONAL CONVERTER Figure A 6 Connection to DTE V 36 V 11 Interface connection to DTE RS 449 RS 422 interface EHN037 V 36 DTE OR RS 449 DTE 37 Pin G 703 Codirectional Converter X 21 DCE...

Page 38: ...PENDIX Pinouts Figure A 7 Connection to DCE V 36 V 11 Interface connection to DCE RS 449 RS 422 interface for tail circuit applciation EHN038 V 36 DCE OR RS 449 DCE 37 Pin G 703 Codirectional Converte...

Page 39: ...38 G 703 CODIRECTIONAL CONVERTER Figure A 8 V 36 With Secondary Channel Cable EY 2364 B G 703 Codirectional Converter V 11 25 Pin Connector DTE V 36 Connector...

Page 40: ...39 APPENDIX Pinouts Figure A 9 Connection to DTE RS 530 Interface EHN039 RS 530 DTE 25 Pin G 703 Codirectional Converter DCE...

Page 41: ...40 G 703 CODIRECTIONAL CONVERTER Figure A 10 Connection to DCE RS 530 Interface for tail circuit application EHN040 RS 530 DCE 25 Pin G 703 Codirectional Converter DCE...

Page 42: ...41 APPENDIX Pinouts Figure A 11 RS 530 With Secondary Channel Cable EY 2364 D G 703 Codirectional Converter V 11 25 Pin Connector DTE RS 530 Connector...

Page 43: ...4 TX Data B 13 11 22 24 S T 9 11 RX Data A 3 12 6 4 R P 4 2 RX Data B 23 13 24 22 T S 11 9 TX Clock A 15 14 5 Y TX Clock B 19 10 23 AA a Rx Clock A 17 23 8 17 V U 6 RX Clock B 12 22 26 35 X W 13 Term...

Page 44: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1995 Black Box Corporation All rights reserved...

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